Browsing is not a very effective way to find harpsichord scores because unlike with many other instruments, harpsichord scores do not have their own call numbers. They have the same call numbers as piano scores, for example, M 22. 

It is better to search our online catalog discover.library.unt.edu to search for specific pieces by particular composers, or to search for extensive lists of harpsichord pieces. A good search strategy is:

Enter "harpsichord music" in quotation marks, and then from the results, from the Filter Your Search menu, select music scores. This brings up hundreds of entries.